The Unyielding Hierophant(A.K.A the Uneven Elephant, as Seargeant Johnson always called it) is a Covenant Battle Station located in the Tau Ceti system, which was conquered by Covenant forces in 2530. The station was a rendezvous point for Covenant forces, before they launched their impending attack on Earth. Knowing this, the crew of the Ascendant Justice-Gettysburg decide to initiate a first strike against the enemy. During the battle, the Unyielding Hierophant is destroyed, along with nearly 500 Covenant ships, only 12 ships survived. It stands as a monumental achievement for the UNSC, and a discerning loss for the Covenant. As it says in the book, it looks like a gigantic eight shaped battle station,Sergeant Johnson said "It looks more like two squids kissing each other". It is 30 kilometers from top to bottom.